| 摘要 |
<p>PURPOSE:To prevent occurrance of a wrinkle and a flaw in a sheet sheaf particularly when discharged the sheet sheaf, by efficiently gathering and stitching together an image recording finished sheet in each number of copy discharged at a high speed. CONSTITUTION:In a sheet after-processing device, it is constituted of a stacker 426 loading a sheet P carried out from an image forming device temporarily stored, stitching means properly arranging a sheet sheaf P loaded on the stacker 426 stitched together, discharge belt 425 conveying the sheet sheaf P stitched together, paper discharge means 460 holding the sheet sheaf P conveyed by the discharge belt 425 discharged and a paper discharge tray T1 receiving the sheet sheaf P discharged from the paper discharge means 460, to increase a paper discharge line speed V2 of the paper discharge means 40 to a higher speed than a conveying line speed V1 of the discharge belt 425.</p> |
